Trying to add a trailer hitch to your Ford Fusion? This CURT custom wiring harness makes the electrical part a breeze. It's a vehicle-specific, plug-and-play T-connector designed to fit certain model years of the Ford Fusion (double-check your compatibility!). Instead of cutting and splicing into your car's factory wires, you simply unplug a connector at your tail light assembly and plug this harness in between. It taps into your existing brake, turn signal, and tail light circuits and provides a standard 4-way flat connector socket at the back of your car. It even includes a powered converter to make sure the signals are right for your trailer lights. The whole thing is sealed against moisture and weather. It comes with a dust cover for the connector too. This is by far the cleanest, most reliable, and easiest way to wire your car for towing a small trailer. Get hooked up and hit the road!